PLUS (MT)

Scientific American Frontiers"Life's Really Big Questions"
Alan Alda meets scientists tackling some of the biggest questions of our time: Is there other life in the universe? Why did animals suddenly appear on Earth when only microbes had existed for billions of years? What made humans different from other life forms before us? And will robots one day surpass human intelligence?G

9:00 pm

Next Frontier: Engineering the Golden Age Of Green
The Next Frontier: Engineering the Golden Age of Green cuts through the debate about global warming and climate change. Instead, it focuses on the renewable, clean energy technologies that can improve our future and create significant economic opportunities. This entertaining one-hour documentary takes the viewer around the world in search of technologies and policies that will address the serious problem of excessive carbon dioxide emissions and our dangerous dependence on fossil fuels. D

10:00 pm

NOVA"Earth from Space"
This special reveals a new space-based vision of Earth. Produced in consultation with NASA scientists, the film takes data from Earth-observing satellites and transforms them into dazzling visual sequences, each one exposing the intricate web of forces that sustain life on Earth. The techniques reveal how dust blown from the Sahara fertilizes the Amazon; how a submarine "waterfall" off Antarctica helps drive ocean currents; and how the sun's heating of the southern Atlantic gives birth to a powerful hurricane.G